问题现象：
登陆数据库失败，报无可用空间
oracle@urp1vsmdb1:~> sqlplus "/as sysdba";
SQL*Plus: Release 11.1.0.7.0 - Production on Fri Aug 5 14:29:03 2011
Copyright (c) 1982, 2008, Oracle. All rights reserved.
ERROR:
ORA-09817: Write to audit file failed.
Linux-x86_64 Error: 28: No space left on device
ORA-01075: you are currently logged on
处理步骤：
1，检查相关文件系统空间，发现安装数据库的/opt 文件系统已被占满
urp1vsmdb1:/etc # df -lh
Filesystem
Size Used Avail Use% Mounted on
/dev/sda2
9.9G 412M 9.0G 5% /
udev
7.9G 184K 7.8G 1% /dev
/dev/sda10
30G 3.7G 25G 13% /home
/dev/sda9
9.9G 151M 9.3G 2% /log
/dev/sda5
55G 52G 0 100% /opt
/dev/sda8
5.0G 139M 4.6G 3% /tmp
/dev/sda6
5.0G 2.2G 2.6G 47% /usr
/dev/sda7
5.0G 264M 4.5G 6% /var
tmpfs
8.0G 4.7G 3.4G 59% /dev/shm
urp1vsmdb1:/etc # su - oracle
2，使用均分法依次逐层检查opt 下相关目录，发现/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener/alert竟然达到37G之多，
检查该目录下面全部都是.xml的日志文件，是记录监听器相关日志的。
oracle@urp1vsmdb1:/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener> du -sh alert/
37G
alert/
oracle@urp1vsmdb1:/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener> cd alert
oracle@urp1vsmdb1:/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener/alert> ls
log_1000.xml log_1261.xml log_1521.xml log_1782.xml log_2041.xml log_2301.xml log_2562.xml log_2822.xml log_3082.xml log_3342.xml log_3602.xml log_490.xml
3，将其进行删除，但发现日志增长迅速，几分种后就已经增长到了几百兆；
oracle@urp1vsmdb1:/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener/alert> rm *.*
oracle@urp1vsmdb1:/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener> du -sh alert
590M
alert
4，问题聚焦在如何停止监听器日志上，以下为关闭监听器日志详细步骤：
1） 以
oracle用户登陆数据库，进入监听器
oracle@urp1vsmdb1:/home/oracle
lsnrctl
LSNRCTL for Linux: Version 11.1.0.7.0 - Production on 05-AUG-2011 15:18:41
Copyright (c) 1991, 2008, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
2） 检查监听器日志状态，发现为放开状态
LSNRCTL> show log_status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
LISTENER parameter "log_status" set to ON
The command completed successfully
3） 将监听器日志关闭
LSNRCTL> set log_status off
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
LISTENER parameter "log_status" set to OFF
The command completed successfully
4） 保存配置
LSNRCTL> save_config
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
Saved LISTENER configuration parameters.
Listener Parameter File
/opt/oracle/product/11g/db/network/admin/listener.ora
Old Parameter File
/opt/oracle/product/11g/db/network/admin/listener.bak
The command completed successfully
5） 验证日志是否已关闭，是否修改成功
LSNRCTL> show log_status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
LISTENER parameter "log_status" set to OFF
The command completed successfully
LSNRCTL> quit
6） 检查
lisenter配置文件验证是否更新：
该配置文件为$ORACLE_HOME/network/admin/listener.ora ，文件中包含"LOGGING_LISTENER = OFF"
则表示更新成功；若文件中没有，则在文件末尾添加
"LOGGING_LISTENER = OFF"。
oracle@urp1vsmdb1:/opt/oracle/diag/tnslsnr/urp1vsmdb1/listener>
vi /oracle/product/11g/db/network/admin/listener.ora
以下为修改后的监听器文件内容：
# listener.ora Network Configuration File: /opt/oracle/product/11g/db/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = urp1vsmdb1)(PORT = 1521))
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = uivr)
(ORACLE_HOME = /opt/oracle/product/11g/db)
(SID_NAME = uivr)
)
)
#----ADDED BY TNSLSNR 05-AUG-2011 15:20:14---
LOGGING_LISTENER = OFF
#--------------------------------------------